#-*- Makefile -*-
## This file contains tabs: make sure your editor leaves them unchanged.
## As from R 2.9.0 it is only used when building R itself.

## ===== configuration macros for building R  ===============

# Alternatives GCC4 or F2C (use suitable f2c rather than a Fortran compiler).

BUILD=GCC4

# an alternative is to use -gstabs here, if the debugger supports only stabs.
G_FLAG=-gdwarf-2

## ============== configuration macros for building R ===================

# Comment out if the msvcrt.dll malloc/free is required (not tested recently)
LEA_MALLOC=YES

# Set to YES and specify the path if you want to use the ATLAS BLAS.
USE_ATLAS=NO
ATLAS_PATH=/R/ATLAS/lib/WinNT_P4SSE2

# Support for the ACML and Goto BLASes has been withdrawn: see R-admin.html

# Where does Tcl/Tk live? Spaces allowed.
TCL_HOME = $(RHOME)/Tcl
TCL_VERSION = 85

# Define to use svnversion to set SVN-REVISION (slow, and requires a clean
# checkout with no modifications).
# USE_SVNVERSION = YES

# We normally link against DLLs, but this macro forces the use of import libs
# Needed if using other compilers, including Mingw64
# USE_IMPLIBS = YES

# Some of the Mingw64 compilers are in fact cross-compilers and have prefixes
BINPREF=

# 32- or 64-bit Windows?  For experiments with Mingw64.
WIN=32
ifeq ($(strip $(WIN)),64)
USE_IMPLIBS = YES
DEFINES=-DW64
BINPREF=x86_64-pc-mingw32-
endif

# set to use ICU (experimental)
# USE_ICU=YES
# path to parent of ICU headers
ICU_PATH=/sources/icu

# optional overrides for making bitmapdll: names of source directories
# JPEGDIR = jpeg-7
# PNGDIR = libpng-1.2.35
# TIFFDIR = libtiff


## ====== configuration macros for building installer ===========

# location where Inno Setup 5.[123].x was installed. Spaces allowed.
ISDIR=C:/packages/Inno

## ====== configuration macros for building MSI installer ===========

# location where WiX was installed. Spaces allowed, slashes required.
WIXDIR=C:/packages/WiX

## =============== end of user-customizable parts  ===================

## c99 would force __STRICT_ANSI__ disabling strdup etc, and also alloca
C99FLAG=-std=gnu99

ifeq ($(strip $(BUILD)),GCC4)
F77=$(BINPREF)gfortran$(GCC4_SUFF)
FLIBS=-lgfortran
## for mingw-runtime <= 3.11
# C99FLAG=-std=gnu99 -fgnu89-inline
## earlier Rtools needs -sjlj
## an alternative is -dw2, which currently fails building R.
GCC4_SUFF=
endif

ifeq ($(strip $(BUILD)),F2C)
F77=sh $(RHOME)/src/scripts/f77_f2c
FLIBS=-lf2c
endif

ifdef USE_IMPLIBS
IMPDIR=lib
else
IMPDIR=bin
endif

## use in front-ends and internet module
GRAPHAPP_LIB=-lRgraphapp
## used in stats/src/Makevars.win
BLAS_LIBS=-L$(RHOME)/$(IMPDIR) -lRblas
## these were for packages
# LAPACK_LIBS=-L$(RHOME)/$(IMPDIR) -lRlapack
# ZLIB_LIBS=-lRzlib

AR=$(BINPREF)ar
AS=$(BINPREF)as
# AWK=gawk
CAT=cat
CC=$(BINPREF)gcc$(GCC4_SUFF) $(C99FLAG)
CP=cp
# as set by make
CPP=$(CC) -E
DLL=$(CC)
DLLTOOL=$(BINPREF)dlltool
## some versions have trouble with paths, so we always need this
## even for native builds
DLLTOOLFLAGS=--as $(AS) -k
ECHO=echo
## FIND is only used in installer/Makefile
FIND=find
LINKER=$(MAIN_LD)
MAIN_LD=$(CC)
MKDIR=mkdir
NM=$(BINPREF)nm
PERL=perl
RANLIB=$(BINPREF)ranlib
RESCOMP=$(BINPREF)windres
# as set by make
RM=rm -f
SED=sed
SORT=sort

## from etc/Renviron.site on Unix
# EGREP=grep -e
# LN_S=cp -p
# TAR=tar

.SUFFIXES:
.SUFFIXES: .c .cc .cpp .C .f .o .a .def .exp .dll .exe .d .f90 .f95 .m .S

.c.d:
	@echo "making $@ from $<"
	@$(CC) -MM $(CPPFLAGS) $($*-CPPFLAGS) $(DEFINES) $< -o $@

.c.o:
	$(CC) $(CPPFLAGS) $($*-CPPFLAGS) $(CFLAGS) $($*-CFLAGS) $(DEFINES) -c $< -o $@

.f.o:
	$(F77) $(FFLAGS) $($*-FFLAGS) -c $< -o $@

%.exe:
	$(LINKER) $(LINKFLAGS) $($*-LINKFLAGS) -o $@ $^ $($*-LIBS) $(LIBS)

%.dll:
	@$(ECHO) EXPORTS > $*.def
	@$(NM) $^ | $(SED) -n 's/^.* [BCDRT] _/ /p' >> $*.def
	$(DLL) -shared $(DLLFLAGS) $($*-DLLFLAGS) -o $@ $*.def $^ $($*-DLLLIBS) $(DLLLIBS)
	@$(RM) $*.def

lib%.dll.a: %.def
	$(DLLTOOL) $(DLLTOOLFLAGS) $($*-DLLTOOLFLAGS) --dllname $*.dll --input-def $*.def --output-lib $@

%.a:
#	@$(ECHO) -------- Building $@ from $^ --------
	@$(RM) $@
	$(AR) crs $@ $^

## Mingw64 at one time needed --use-temp-file
%.o: %.rc
	$(RESCOMP) $(RESFLAGS) $($*-RESFLAGS) -i $< -o $@
